9.1 Combinations of M-II and M-III Port Communications Settings
9.1.1 I/O Gateway Mode
9-2
9.1
Combinations of M-II and M-III Port Communications Settings
This section provides information on combining communications settings for the M-II and M-III
ports in I/O Gateway Mode and Transparent Mode.
9.1.1
I/O Gateway Mode
In I/O Gateway Mode, the M-II port communications cycle must be the same as the transmis-
sion cycle (1 x transmission cycle).
You can set the communications cycle of the M-III port in I/O Gateway Mode to any value that
is an integral multiple of the M-III transmission cycle.
The following table shows the possible combinations of the M-II port and M-III port transmis-
sion cycles in I/O Gateway Mode.
: Can be set.
M-III Port
Transmission Cycle
M-II Port Transmission Cycle
500
μ
s
1 ms
1.5 ms
2 ms
3 ms
4 ms
250
μ
s
500
μ
s
750
μ
s
1 ms
1.5 ms
2 ms
2.5 ms
3 ms
3.5 ms
4 ms
4.5 ms
5 ms
5.5 ms
6 ms
6.5 ms
7 ms
7.5 ms
8 ms
